On Mon, 10 Jul 2006, Philippe Meunier wrote: > - Which brings me to my last point: has anybody worked / is working / > plans on working on handling hibernation and suspend-to-RAM entirely > in software rather than through the BIOS? The way swsusp or suspend2 > do it for linux? I'd guess that a good chunk of the machinery > necessary for something like that is already in the kernel, save maybe > for things like copying to disk the non-pageable kernel memory and > bringing it back into memory after restart. So are there any plans to > go into that direction, by any chance?
This would certainly be interesting. Working suspend-to-disk is one of the key features that keeps me with Linux as the main OS on my laptop for the time being. In OpenBSD, although 'zzz' works very nicely for suspend-to-ram via APM, my battery isn't reliable enough to make this viable for longer periods and during transportation, and my machine cannot do hibernation in hardware. I can do it perfectly in software, however, using Suspend2 for Linux. I recall last year someone had started an attempt to implement this functionality in FreeBSD [1], but I don't know to what extent that has panned out in the meantime. Apart from that, I'm not aware of any non-Linux free OS on which this can currently be done. [1] http://lists.freebsd.org/pipermail/freebsd-acpi/2005-September/001893.html -- jonathaN
